Car-axle.



` Patenfed se'pt. 17,1901;

w., n 0 M w Sav., ELW BXN Dunnm M Mm m. .A M n (No Model.)

IlllM lmnmllmm Fillllllllllh llllvl IIIIDHU PATENT Ormea.

ANTHONY M. ROBESON, OF DOUGLAS, ALASKA TERRITORY, ASSIGNOR TO WILLIAM J. OHALMERS,

OF CHICAGO, ILLINOIS.

CAR-AXLE.

SEEGEFICATILON forming part of Letters Patent o. 683,001, dated September 17, 1901.

Application filed November '7, 1900. Serial No. 35.747. (No model.)

To @ZZ whom, t may concern:

Beit known that I, ANTHONY M. RoBEsoN,

a citizen of the United States, residing at Douglas, Territory of Alaska, have invented a new and useful Improvement in Car-Axles,

of Which the following isa specification.

My invention consists in an improvement in divided car-axles which permit independent movement of their wheels.

My primary object is to provide a construc-` tion for this class of axles Which shall be perfectly adapted to practical use.

My invention is illustrated iu the accompanying drawings, in Which- Figure l is a vertical section parallel to the axle; Fig. 2, a transverse section at line 2 of Fig. 1; Fig. 3, a broken section illustrating a modification of the central portion of the structure shown in Fig. l; Fig. 4, a broken section at line 4 of Fig. 3; Fig. 5, a view similar to Fig. 3 and showing a further modification, and Fig. 6 a section at line 6 of Fig. 5.

A A' represent the sections or members of the two-part axle; B B', the car-Wheels firmly fixed to the outer ends thereof; C, a continuous axle boX or sleeve provided with bearings for the axle-sections; D D', sets of antifriction-rollers arranged in annular channels a at the ends of the sleeve C and confined therein by threaded rings or flanges a'; E E', sets of antifriction-balls which serve both to key the axle-sections to the sleeve and to receive the radial pressure at the inner ends of said sections; F F', similar outer race members Which serve to prevent Withdrawal of the axle-sections G G', similar race members which receive the most of the radial pressure and all of the outward thrust at the inner ends of the axle-sections; H, an enlargement or box at the center of the sleeve C and provided with a removable cover-plate H', and I I' sets of pins or bolts passing through perforated lugs b and into sockets or depressions b' and serving to secure the race members G G' in place.

The members F and F' abut at their outer vertical faces against shoulders c, aorded by recessing the central portion of the sleeve to receive the race members. The members G 5o and G' abut against the members F and F'.

The cover-plate H' is provided with a threadsuitable manner.

ed perforation, Whereat oil may be introduced and which is closed by a plug d. Grooves are preserved at g, g', and g2, as shown, for conducting the oil to the roller-bearings, and 5 5 packing-rings h are employed to prevent .loss

of oil and entry of dust. The inner ends of the axle-sections themselves are grooved, in the preferred construction,to receive the balls employed thereat, as shown. The sleeve C 6o is connected with the body of the car in any Preferably flat integral bosses or plates J are employed as a portion of such connection.

In the modification of Figs. 3 and 4 the cen- 65 tral portion of the sleeve C is provided interiorly With integrally-formed grooved rings it, serving as race members. The cover-plate H' is omitted, a central screw-plug 7c being inserted directly into the center of the sleeve, 7o and perforations are provided through which the balls may be dropped into the races, the breaks occurring by reason of said perforations being Arepaired by suitably grooved plugs k2, held in place by cap-screws k3. The plugs k2 are provided with lugs 7a4, Which enter suitable grooves and prevent turning.

In the modification of Figs. 5 and 6 hardened race members Z are employed to replace the separately-formed race members de- 8o scribed in connection with Fig. l. Here suitably-grooved plugsl' are employed, which pass through the perforations provided in the members Z for the insertion of balls. The members lare shown held in position by hori- 8 5 zontally-disposed screw-bolts Z2. In this construction the removable plate H' is employed to provide for the insertion of the members Z, and the perforations leading to the ballraces are for facilitating the assemblage of go parts.

The manner of assembling the parts is clear from the drawings and the foregoing description, it being only necessary to add that the race members are readily insertible through the enlargement H before the cover-plate is attached. Each wheel is firmly secured to its axle-section before the latter is inserted into and secured against Withdrawal from its bearings. fore the axle-sections are secured and are retained by the rings a'. The channels a con- The rollers are put in place be- 10o tain oil, afordinga bath for the rollers. The wheels have independent movements, which of course is of great advantage in rounding curves in the road. The axle-sections are interlockingly joined to the axle-box by the antifriction-balls, which provide against friction from an end thrust in either direction.

What I claim as new, and desire to secure by Letters Patent, is-

In a construction of the nature described, the combination of an integrally-formed axlebox having a central enlargement, race members introduced through and retained in said enlargement, axle-sections provided'at their inneil ends with ball-grooves, balls serving to lock the axle -sections against Withdrawal, wheels at the outer ends of said axle-sections, and antifriction-bearings for the axle-sections located adjacent to the Wheels, substantially as described.

ANTHONY M. ROBESON. In presence of- D. W. LEE, ALBERT D. BACCI. 

